Subj : MESO: Mesoscale Discussion 2203 To : wx-storm@lists.illinois.edu From : COD Weather Processor Date : Thu Sep 28 2023 22:16:38 ACUS11 KWNS 282216 SWOMCD SPC MCD 282216=20 TNZ000-KYZ000-282315- Mesoscale Discussion 2203 NWS Storm Prediction Center Norman OK 0516 PM CDT Thu Sep 28 2023 Areas affected...portions of western Tennessee Concerning...Severe potential...Watch unlikely=20 Valid 282216Z - 282315Z Probability of Watch Issuance...5 percent SUMMARY...A couple instances of severe hail or wind may occur with one of the stronger storms. The severe threat should remain sparse and a WW issuance is not expected. DISCUSSION...Isolated thunderstorms have experienced an uptick in intensity over the past couple of hours along a baroclinic zone. Steep low-level lapse rates atop upper 60s F dewpoints are contributing to 1500+ J/kg MLCAPE. Veering with height of the tropospheric wind fields is supporting 30-40 kts of effective bulk shear, which is encouraging the organization of transient supercell thunderstorms. Given poor mid-level lapse rates/marginal instability and modest vertical wind shear, the severe threat should be limited to a couple instances of severe hail/wind with the stronger, more persistent supercell storms. Given the isolated nature of the severe threat, a WW issuance is not expected. ...Squitieri/Hart.. 09/28/2023 ....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-wp6E4_ZnHWXvLbHnxs9e3mFooyqqXKMOCtCqFu85xf6PWwnaF9GpV-TZcuvHLjTAOw7iyjGA= jDAC6L6YVd5ZrbaolU$ for graphic product... ATTN...WFO...PAH...MEG... LAT...LON 36398944 36658897 36558853 36318831 35908816 35428825 35228855 35228889 35468924 36058952 36398944=20 =3D =3D =3D To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM. --- SBBSecho 3.14-Linux * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105) .